Thoth, Vessel Invader

Flash, deathtouch, haste
When Thoth, Vessel Invader enters the battlefield
exile a target creature other than itself and create
a copy of it under your control that has
deathtouch and haste. If Thoth, Vessel Invader
and a creature named Ketsueki Kuznetsov are
attacking, and you both own and control both
of them, exile them, then meld them into L-13,
Statasium Abomination. It enters the battlefield
tapped and attacking.